Can-cover.



J. B. CNOVER.

CAN COVER.

APPLIOATION FILED nov.1a,191o.

JACOB B. CONOVER, OIE,` JERSEY CITY, NEW JERSEY.

; Errea. g

CAN-COVER.

To autonom it may concern: Be it known .that I, JACOB B. Genoma, a citizen iof. the lUnited States of America, residing at Jersey City, in the county of Hud son andState of New Jersey, have invented certain new and useful Improvements in Can-Coversv of which the following is a specification, reference being had therein to the accompanying drawings, `forming part thereof.

My Iinvention relates to covers for cans and vparticularly for milk cans.

One object of vmy invention is the strengthening and stiffening of such covers by the mutually reinforcing action of double walls, particularly in the flange and neck portions thereof. y

Another object ofmy invention is the elimination of unsanitary joints, gaps 'or crevices.. v

Further objects are durability and facility ofvmanufacture.

Still other objects and advantages of my invention will appear from the following description.

I shall .nowk describe the embodhnents of luy-invention shown in the accompanying drawing, and shall thereafter point out my invention in claims; f

Figurel is a central sectional elevation of my improved cover. Fig. 2 is a similar View, on a reduced scale, of a cover of modified yform in place on a milk can, the lower part of the can being broken away.

The cover iscomposed of two seamless pieces, vvboth of suitable sheet material, as tinned iron. The lower piece has an outwardlyA extending and downwardly curved top flange or rim o and a stopper portion. The stopper portion has a downwardly extending neck d of nearly cylindrical form, but slightlysinaller in diameter toward its lower end to insure a tight tit in the neck of the milk can, the neck of the cover having double walls formed by folding the metal'v back upon itself. As shown in Fig.- l, the double walls are continued throughout the neck. As shown in Fig. 2, the double walls are continued throughout the portion of the neck which engages thev neck of the can. As shown in Fig. l, the sto per portion is c'o1n pleted byra'ffiat or Adisk shaped inner -top Specification of Letters Patent.

portion a. As shown in Fig. 2, the stopper Patented Jan. EQ, 3191i.

Application filed November 18, 1910. Serial No. 532,963.

portion is completed by an arched inner top portion a which braces and reinforces the neck at its point of departure therefrom and braces yand reinforces the upper top portion of the cover at lacentral portions thereof. The double walls of the neck of the cover are sufficiently close together to reinforce each other, as shown in Figfl, and may in somevinst-ancesbe in contact. As shown in Fig. 2, they are inl contact at the top of the doublev portion of the neck. The upper piece b of the kcover is shaped to t over the lower piece in such closev proximity thereto as to reinforce the flange portion c andthe disk portion bthereof, as shown in Fig. l, or may be in actual contact therewith, or may be in close proximity to the lower` piece at the ange portion thereof and again in close proximity and actual contact therewith at central portions thereof, as shown in Fig. 2, and rovides a smooth top without any angular ends, which is reinforced by the lower piece throughout its entire surface, as shown in Fig. l, and is reinforced by the lower piece at the flange, where it is subjected to the greatest strains, and at central,pox-tions, where its own resisting power is at a minimum, as shown in Fig. 2. The upper and lower pieces of the cover are secured together at their margins by beading them upward around a' `reinforcing hoop or wire g, the lower piece be ing of larger diameter than the upper piece at its outer periphery so as to extend over into contactv with the top surface of the upper piece after it has passed over the wire, thus closing the usual gap at the beadin and providing a continuous smoothly roun ed surface and a single joint, and this joint may be closed byr soldering or' tinning'and is at the upper and outer part of the cover so that it may be readily observed and easily 'canand the top of the cover, to accommoand strains. For example, the removal of a cover trom its tight lit in the can neck, is 'frequently accomplished by hammerin up- 'a'ard against'the outer margin of the ange olf the cover, Even if this 1s not necessary, the retrieval of the cover is accomplished by grasping the flange of the cover and twisting the cover until it is released.- lirequently the cover is first twisted in this man ner, and this failing lto release it, is then hammered loose, The resulting very heavy shocks and stresses tend to distort the cover, and if 'the cover becomes distorted so that it will not tightly lit the can neck, it is useless. Breakages also frequently occur ,in covers as heretofore mede, because of this rough handling and violent usage. The outer flange of the cover is one of the handiest places to grasp in moving a can about and is frequently grasped in handling the can to the detriment ot the cover as hereto fore made. Cans are frequently stacked one on top of another. while traveling in a frei ht car or wagon, and here the cover of the ower can must sustain the weight 'of the can above it and receive the shocks that result from the vibrations of the car or wagon. The construction of i'ny can cover adapts it to resist all of this rough usage. Each wall is reinforced by an adjacent wall, either throughout its entire surface or at the por.

tions where such reinforcement is most needed. The peripheral strains and shocks imparted to the flange of the cover are resisted both by the smooth upper piece, strengthened li-v the arched form of its outer part, and by the lower piece similarly arched at its vouter part and reinforcedat this outer part by the upper iece.y The great strength of this flange is o. prime importance in preserving the shape ot the cover. This rein forcement o one part by the other continues at what has heretofore been a usual point of breakage, the upper end of the neck ot' the l cover, and is continued between the inner top portion of the lower piece and the flat part of the upper piece which is above it, either throughout such flat part of the up per piece or at the central and weaker parts thereof. rlhe archedform of the inner top portion shown in lfig. 2, givesy to this portion great rigidity of structuren The two ieces of stock from which the cover is ma e, are drawn by dies and may be finished by spinning. The two pieces are then .put together and their peripheral edges crevices Within which "particles of milk or dirt may lodge, and every art of the cover may be easily and thorough y cleaned.

l t is obvious that 'variousmoditicat-ions may be made in the construction shown and above particularly described within the principle and scope of my invention.

l claim:

l. can cover comprising a lower piece shaped to form a stopper portion and an upper projecting tlangefthe stopper portion consisting of a double walled neck portion and an inner top portflm; and an upper piece covering the lower piece and including a projecting flange and a top for the stopperportion, the two pieces being joined at their margins.

2. A can cover comprising a lower piece shaped to for-rn a stopper portion and an upper projecting liange, the stopper portion consisting of a double walled neck portion and an inner top portion; and an up er piece including a project-ing lflange an a top for the stopper portion and dis Aoecd over the lower piece so as to be rein orccd by the flange and the inner top-portirm of the lower piece. i

3. A can cover comprising a lowcnpiece shaped to forni an outwardly ext-ending and downwardly curved .flange and a stopper portion, the stopper portion consisting of'a double walled neck portion and an inner top portion; and an up er piece having a correspondingly shape( flange and a top for the stopper portion and disposed over the lower piece so as to be reinforced by the flange and the inner top portion of the lower piece, the upper 'and ower pieces being joined at their margins.

4. A can cover comprising a lower piccol shaped -to form a stopper portion and an.

up er rojectin flange, the stopper portion coiibistihg of agdouble walled neck portion and an inner top portion of arched form; and an `up er piece covering the lower piece and inclu ing a projecting flange and a top for the sto per portion, thetwo pieces being joined at their margins.

5. A can cover. comprising a lower piece shaped to form a stopper portion and an upper projecting Hanne, the stopper portion consisting of a doub e walled neck portion portion of arched form;

onble walled neck portion and, an inner top ortion of arched form' and an upper piece having n correspondingly shaped angel and a top for the stopper portion and disposed over the lower piece so as to'be reinforced by the flange and the arched inner top portion of the lower piece7 the upper and lower pieces being joined at their margins.

7. A can cover of sheet material having a marginal beaded joint comprising a reinforcing hoop over which the sheet material is bent7 the sheet material extending around the reinforcing hoop and inward beyond the hoop, so as to bridge the gap between the hoop and the sheet material, and into face contact with the adjacent surface ofthe sheet material.

A can cover comprising two pieces of Sheet material, an upper piece and a lower piece7 joined at their outer margins by a beaded joint including a reinforcing hoop, one piece extending around the reinforcing hoop and inward beyond the hoop, so as to bridge the gap between the hoop and the `sheet material, and into face 'contact with the surface of the other piece.

9. A can cover comprising a lower piece shaped t'o form a stopper portion and an upper projecting flange, the stopper portion consisting of a double walled neck portion and an inner top portion; and an upper piece including a projecting fiange anc a top for the stopper portion and disposed over the lower piece so as to be reinforced by the same; the tvo pieces being joined at their margins by a beaded joint including a reinforcing hoop, the lower piece extending upward and around the reinforcing hoop and inward beyond the hoop7 so as to bridge the gap between the hoop and the upper piece, and into face Contact with the upper piece.

In testimony whereof I have allixed my signature in presence of two witnesses.

JACOB B. CONUVEH.

`Vitnesses z JoirN A. Horwoon, v nRNAnn CownN. 

